Heatsink Lapping and 180 Temp

HI guys, in the last week i have accumulated a mega 180 and am in the process of reducing its temp.
What do u guys suggest, and what the hell is lapping, can someone point me in the right direction
thanks

Lapping is polishing your heatsink to mirror finish (with sand paper)
then applying thermal paste (Arctic 5) and then praying the temperatures go down, since the thermal conduitivity (sp?) is increased.
http://www.bigbruin.com/html/lapping-guide.htm
or do a google search, you should find enough when you enter guide+lapping
http://www.google.nl/search?hl=nl&q=lapping+guide&lr=
Ray

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Mega 180 Temps

Let me start off by saying that the Mega 180 is a great idea for a product but unfortunately it is not finished. MSI is using us as beta testers - at our expense. I build computers for people as a side business and against my better judgement, I built a customer a Mega 180 based system and I've had nothing but problems with it and it's damaging my reputation. But, OK enough of that.
One major problem with the Mega 180 is it's CPU and hard drive temp and here's what you can do to fix it. First off, the CPU heat sink is nice and big and made of copper - very nice. However, the underside of the sink (the part that touches the CPU) is absolutely aweful! The bottom should be mirror smooth. Mine looks like the surface of a record. Therefore, you need to lap it. Look this process up on the net to see exactly how to do it. Once lapped and the bottom is mirror smooth and you can see your reflection, use ARTIC SILVER thermal grease (just a tiny bit) and put the sink back on. Your CPU temp under load will be about 8 degrees cooler. Next, replace the small fan on the cooler with a bigger one (make sure you use one that's sensored, like the one you're replacing). Lastly, get some flexible ducting from the hardware store (plastic, not aluminum), attach one end over the sink's big fan and carefuly route the other end to the side of the case (may not be possible if you are using an AGP card) and position it so it sucks in outside air. Now that your CPU is cooled with fresh air, you will see another 2 - 3 degree reduction of CPU temp.
Finally, the hard drive is way too hot. I measured it with a IR temp meter after a full defrag and my jaw hit the ground when I saw how hot it was - 152 degrees F. That type of temp will kill your hard drive. Fix this by placing a fan inside the case (RAM side) blowing fresh air right onto the hard drive. This brought the temp down significantly. It also cooled other items too (CD drive, chipset).
The only downside to this is your system will be louder due to fan noise. However you will have fewer system lock-ups and mystery reboots (caused by overheated components).
One last idea, if the case is just too cramped for you, remove the power supply, buy a new one and mount it outside the case on the back. It doesn't look good but it sure frees up space and improves air flow (plus you'll have more power if you buy a higher watt supply).
Peace!

Hey cb31,
Even though this thread is about temps, I too think noise is the biggest problem with the Mega, and my current efforts are targeted at killing the constant background noise. My goal is the same as your's - I want to leave the computer on most of the time and not be bothered with it.
I'm proceeding slowly however, and so far I've only done the following:
-Replaced the 60mm Delta fan with a Papst of the exact same size. I found the Delta to be noisy, while others report that it's doing ok. Don't know about you... The Papst is really quiet and actually cools a little bit more effective, though that's a bonus feature! But on the overall it didn't have the effect I hoped for
-The smaller Delta fan (outtake side of heatsink) already is quiet enough, so doesn't need to be replaced on behalf of noise anyway...
-Took out the PSU and put White Lithium Grease in the fan for smoother operation since I figured it made a lot of noise. That didn't help much either... I'm thinking about replacing the PSU fan with something better, even though a lable on the back of the PSU states "W/ Noisekiller". It's still a no-name fan and can be improved upon.
Right now the loudest noise in my Mega doesn't seem to come from any fan at all, but rather from the hd. And it's not so much the actual noise from the unit as vibrations reverberating through the chassis. A common problem obviously, but there isn't any room for hd suspension systems in the Mega, so other actions are required here! I tried to slide in thin sheets of plastic between the drive and the cage, to act as silencers, but that didn't have any real effect as the cage touches the drive in several places, thus transfering the vibrations anyway. A new drive cage could do the trick, but I haven't gotten that far yet, and might not ever...
The Seagate Barracuda is considered to be a silent drive, so replacing it probably wouldn't help.
To conclude: If your fans are noisy, replace them or grease them for better operation, but you might not even hear the difference...
The major flaw seems to be the internal design of the Mega, and there's isn't much to be done about that, unless you're handy with a Dremel and sheets of metal. I might be, but I will have to get back to you on that!
Cheers!
-M

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TS3999 I see high and low temps in place of scheduled events. Why do I see weather instead of events? Is there a way to switch ?

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Check Settings>Privacy>Calendars. You may have a weather app that is accessing your calendar and entering this information. If so, turn it to Off and see if it stops.

Aren't -180° and 180° the same for a 3D parametric surface graph?

Hi
everyone,
I need to
plot some results using the 3D parametric surface graph and these 3 matrix :
First
matrix “theta” : Each column ranges from -180° to 179° (180x360)
Second
matrix “phi” : Each line ranges from 0° to 89.5° (increasing by 0.5°) (180x360)
Third matrix “z” : 180x 360 matrix initialised to 7
First and
second matrixes are converted to a polar representation.
My problem
is that I reach my goal, a full red circle, only if my matrixes range
from -180° to 180° and not when they range from -180° to 179°. Aren’t -180° and
180° the same for this graph? I must be doing something wrong...
Any help
would be great,
Thanks.
Regards,
User
Solved!
Go to Solution.
Attachments:
Forum.vi ‏671 KB
Pb circle.JPG ‏20 KB

Seems obvious that you need to have the first and last point the same in order to close the curve.
A simpler, but equivalent example is a circle on an xy graph, Unless the first and last point coincide, you won't close the loop.
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Just be very careful when lapping, If using sand paper make sure its super super fine. I lapped my GPU on my 8500LE 128meg version when i changed out the HSF on it, I have also lapped my cooler master HSF on my last rig before watercooling(was already lapped to mirror finnish already ). There is really nothing to it but lapping a CPU I have never heard of.

Kernel Panic, and high temps?

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Message was edited by: Steelbom
Message was edited by: Steelbom

Don't know if this will help or not-
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Thank You for your time in reading this,,,,
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Thanks Again for your time in reading this, I apologize if my Mind Set while writing questions seems =\ little sleep deprived Solutions come to me better when sub-concious part of my brain is influencing more,, laffs yeah like that makes sense,,,
~Mike¥²
Happy 2005,,,

i think they need the 4pin to run at full speed when i take mine off it reduces the core and ram speed but the cpu fan stays running. i have a abit 5700 ultra.

Heatsink Lapping and 180 Temp

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